Business clothes is a manner of attire that society deems appropriate for conducting important or solumn occasions. In Western society, for men it consists of a business suit, and for women it consists of a business suit or a dress of appropriate length.

Historically, these business clothes would be worn to a job interview, a wedding, a funeral or to give a formal presentation such as a thesis defense or a court trial.

Business clothes are used to give the users the opportunity to show respect for the importance of the occasion. It is a social convention that allows users to conform to social expectations, and those that fail to follow the dress code specified by an occasion are deemed to be disrespectful or a social rebel. Because business clothing generally tends to hide the physical attractiveness or sexuality of the user, business clothes serve to draw attention to the substance of the event rather than to the sexual attraction of the participants in the event.

Some youthful feminists are challenging the use of business clothes because they claim that women should have the right to inject physical beauty and sexual attraction into formal occasions. For example, Cornell University student Lititia Chai organized a group of 22 students to attend her honors thesis presentation, where they all stripped to their underwear during the presentation.[1]

The Comedy Central television show "The Opposition with Jordan Klepper" wanted to illustrate how Donald Trump could have a more telegenic attorney spokesman (instead of Rudy Giuliani) by hiring an actor to be interviewed without wearing any shirt.[2][3]